Ms. Durand has an obsession with Christmas. She is standing 8ft away from a 20ft Christmas Geometree. She wonders, "hmmm, what is the angle of elevation from myself to the star on the top of the tree?"
Answers
Answer:
68.20°
Step-by-step explanation:
Using Pythagoras rule :
Tanθ = opposite / adjacent
Adjacent = 8ft
Opposite = 20
Tanθ = 20 / 8
θ = tan^-1(20/8)
= 68.198590
Hence, angle of elevation = 68.2°
Related Questions
9+g+6g–3
a
n
s
w
e
r
p
l
e
a
s
e
Answers
Answer:
6+7g
Step-by-step explanation:
9+g+6g-3=9-3+g+6g=6+g+6g=6+7g
A store offers 30% off all items. If x is the original purchase price, select all of the expressions which represent the final price with the discount.
a 0.7x
b x
c x + 0.3x
d x - 0.3x
e 12x
Answers
Answer:
D c
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
not really an explanation
What is bc divided by 2?
(Algebra)
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Dan has twice as many stickers as Cam does. If Dan gives Cam 15 of his stickers he will still have 22 more than Cam. How many stickers does each boy have?
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2x-15=x+22.
Then solve this equation:
Add 15 on both sides
2x=x+37
Subtract x on both sides
2x-x=37
X=37.
Therefore Cam has 37 stickers, and Dan has 74 stickers.
An older person is 8 yes older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?
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Hope this helps if it does please consider making my answer brainliest
I don't know how to explain it but please help!
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Answer:
required answer. is 1/x³
Simplify:
3 (2x — 2) — 2 (x — 2)
Answers
Answer:
4x-2
Step-by-step explanation:
Answer:
4x-2
Step-by-step explanation:
3(2x-2)-2(x-2)
Use the distributive property
6x-6-2x+4Combine like terms
4x-2SOMEONE PLEASE HELP ME!!!!!! I RLLY NEED THE ANSWER TO THIS!!!
The Pythagorean Theorem states that a² + b² = c?, where a and b are legs of a
right triangle and c is the hypotenuse. Are you able to simplify the Pythagorean
Theorem further to say that a + b = c? Explain.
Answers
Answer:
yes, you can square root to entire equation to get to a+b=c, the square root cancels out the 2
Step-by-step explanation:
3x + 7 + -X - 13
plz help
Answers
Answer:
3x+7-x-13
3x-6-x
=2x
pls mark brilliance if im right
Can someone please help me
Answers
Answer:
131.88cm
Step-by-step explanation:
Implement the formula for circumference of a circle:
2×pi(3.14)×r, r= 21cm and pi is given as 3.14. Substitute your given values into the formula above:
2 × 3.14 × 21= 131.88cm to the nearest hundreth
what is the area of rhombus ABCD
8.5ft and 3.5ft
Answers
Answer:
b
Step-by-step explanation:
edmentum
Trigonometric Ratios and Unit Circles.
See Image Below.
Answers
Answer:
irudiwhiwhs swsw is d
Step-by-step explanation:
8349240 is your aswr 213
hi!! what’s the area and formula for this problem?
Answers
Answer:
formula= [tex]A= \frac{h_{b} b}{2}[/tex] area= 360
Step-by-step explanation:
I hope these are answers for you! I really tried my best!
Expand 3(m + 7). Just answer this
Answers
Answer:
3m+21
Step-by-step explanation:
Answer:
3m+21
Step-by-step explanation:
3(m+7)
3m+21
Hope this helps!
Help me with this problem
Answers
Answer: x=60
Step-by-step explanation:
Hey! X would be 60 because the diagram on the left has proportions of 6/6. The diagram on the right has a porportion of x/60. We want the proportions to be equal so it has to be 60!
6/6 = 1
60/60 = 1 (they are now equal and have equal proportions!)
The price of a car was decreased by 40% to £750.
What was the price before the decrease?
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10% = 125
1000% = 1250
Price before decrease is £1250
the area of a triangle of altitude 15 m is 225 sq.m.whatbis the length of its base. please show steps clearly
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SOMEONE PLEASE HELP ME WITH THIS QUESTION!
Answers
Answer:
i dont know but i have a pic for u
Step-by-step explanation:
the doctor recommended that matt decrease the number of calories he consumed from 2,500 to 1,800. by what percent did the number of calories decrease?
Answers
28%
Step-by-step explanation:
1800/2500 = 0.72
0.72 = 72%
100% - 72% = 28%
What is area of figure. The height is 10m base is 25 m
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Answer:
If it is a 4-sided figure: 250 m
If it is a triangle: 125 m
Step-by-step explanation:
Which expression is equivalent to -5(8x+9) -7x?
A. -33x+9
B. -47x-45
C. -33x - 45
D. 33x - 45
Answers
Hope this helps
Brainliest plzzzz
Answer:
b
Step-by-step explanation:
-5(8x+9)-7x
-40x-45-7x
-47x-45
help me plz, I'll mark brainiest
Answers
Answer:
1
Step-by-step explanation:
I guess it's the first choice
2. What is the slope. Make sure you reduce
Answers
Answer:-4/5
Step-by-step explanation:
(3,3)
(-2,-1)
Y2-y1/x2-x1
3- (-1)/ -2 -3
4/-5
Answer:
4 over 5 (4/5)
Step-by-step explanation:
Its extremely simple. You need to start from the lower point, and count up until you get to the same lime as the other point. Starting from the lower point, you count up 4 to get on the same line. Then, since its on the right, you count to the right 5, till you get to the dot, and you get 4/5. All you have to do is just count
Mario had $35 but then spent $m
Answers
Answer:
how much did he spend
Step-by-step explanation:
mrs. rodrigues wants to compare the spread of the test scores of her two biology classes. which statistic should she use? (multiple choice)
a.) mean
b.) standard deviation
c.) median
d.) mode
if anybody can help me with this, thank you so much! i'm trying to pass a pre-test on e.d.g.e.n.u.i.t.y :( if you know the answer, please explain instead of just giving me the answer alone. thank you! <3
Answers
Mrs. Rodrigues should use Standard deviation.
The correct option is b.
What is a standard deviation?The square root of the variance is used to calculate the standard deviation, a statistic that expresses how widely distributed a dataset is in relation to its mean.
Given:
Mrs. Rodrigues wants to compare the spread of the test scores of her two biology classes.
From the given choices:
The measures of spread include:
Range, quartiles, interquartile range, variance and standard deviation.
Standard deviation is the appropriate choice.
Therefore, standard deviation is the correct phrase.
To learn more about the standard deviation;
brainly.com/question/23907081
#SPJ6
A teacher initially plans to take an SRS of size 50 from his large high school and calculate the sample mean x bar of student GPAs. Later, the teacher decides to increase the sample size so that the standard deviation of the sampling distribution of x bar will be half as big as when using a sample size of 50. What sample size should the teacher use?
57
100
150
200
354
Answers
Answer:
should be 200 because I think you quadrupole it and 50 x 4 =200
Step-by-step explanation:
Answer:
The answer is 200. 50 * 4 = 200.
Plzzzzzzzz HELP!!!!!!
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would it be linear or nonlinear (I'm slow sorry )
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Answer:
It would be linear, because the input and output both increase at a constant rate.
ABOVE & BEYOND: What is the slope of the line graphed below?
Answers
Answer:
3
Step-by-step explanation:
I need help with this
Answers
Answer:
1. minimum
2. vertical line
3. a vertex is a point of where the first derivative of curvature is zero.
4. the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.
Step-by-step explanation: